From patchwork Fri Feb 4 11:10:07 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hanna Czenczek X-Patchwork-Id: 12734976 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D04DBC433FE for ; Fri, 4 Feb 2022 11:19:46 +0000 (UTC) Received: from localhost ([::1]:57218 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nFwcz-0002gs-HJ for qemu-devel@archiver.kernel.org; Fri, 04 Feb 2022 06:19:45 -0500 Received: from eggs.gnu.org ([209.51.188.92]:54290) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nFwTv-00039r-Ls for qemu-devel@nongnu.org; Fri, 04 Feb 2022 06:10:23 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:54044) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nFwTt-0004Sr-NO for qemu-devel@nongnu.org; Fri, 04 Feb 2022 06:10:23 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1643973021; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=0p2MbAYvGEK+H05cwgHZfnLWgyD6KUNR2DRN2LojXP8=; b=WYqTP1jWHLx5iX5FBdYjR30gYtnAvVbOT+/s3RyLtbrJE11Ku81IalrzrwBpXB/l+UtUpc Vq5D1MHdco8IfbemJNZ5NbzGJJ6nAmwGTE1B1T7lh7FPg93qxAgmHADZfBG9+s9fdzzH1j XtDh6vsOf77DyHDhwsnx+UY1QwILuWE= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-206-Wa_iISQnPNKt5qYWo2UCQw-1; Fri, 04 Feb 2022 06:10:20 -0500 X-MC-Unique: Wa_iISQnPNKt5qYWo2UCQw-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 1E00B100CCC7; Fri, 4 Feb 2022 11:10:19 +0000 (UTC) Received: from localhost (unknown [10.39.193.4]) by smtp.corp.redhat.com (Postfix) with ESMTPS id B75F57B6EC; Fri, 4 Feb 2022 11:10:18 +0000 (UTC) From: Hanna Reitz To: qemu-block@nongnu.org Subject: [PATCH v2 2/7] block/nbd: Delete open timer when done Date: Fri, 4 Feb 2022 12:10:07 +0100 Message-Id: <20220204111012.34720-3-hreitz@redhat.com> In-Reply-To: <20220204111012.34720-1-hreitz@redhat.com> References: <20220204111012.34720-1-hreitz@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=hreitz@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=170.10.133.124; envelope-from=hreitz@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.092, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Hanna Reitz , Vladimir Sementsov-Ogievskiy , Eric Blake , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" We start the open timer to cancel the connection attempt after a while. Once nbd_do_establish_connection() has returned, the attempt is over, and we no longer need the timer. Delete it before returning from nbd_open(), so that it does not persist for longer. It has no use after nbd_open(), and just like the reconnect delay timer, it might well be dangerous if it were to fire afterwards. Reviewed-by: Vladimir Sementsov-Ogievskiy Signed-off-by: Hanna Reitz --- block/nbd.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/block/nbd.c b/block/nbd.c index 16cd7fef77..5ff8a57314 100644 --- a/block/nbd.c +++ b/block/nbd.c @@ -1885,11 +1885,19 @@ static int nbd_open(BlockDriverState *bs, QDict *options, int flags, goto fail; } + /* + * The connect attempt is done, so we no longer need this timer. + * Delete it, because we do not want it to be around when this node + * is drained or closed. + */ + open_timer_del(s); + nbd_client_connection_enable_retry(s->conn); return 0; fail: + open_timer_del(s); nbd_clear_bdrvstate(bs); return ret; }